CN205446860U - Ultra -low temperature upper assembling type welded ball valve - Google Patents

Ultra -low temperature upper assembling type welded ball valve Download PDF

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Publication number
CN205446860U
CN205446860U CN201620072790.9U CN201620072790U CN205446860U CN 205446860 U CN205446860 U CN 205446860U CN 201620072790 U CN201620072790 U CN 201620072790U CN 205446860 U CN205446860 U CN 205446860U
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China
Prior art keywords
valve
valve body
gap
described valve
valve gap
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CN201620072790.9U
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Chinese (zh)
Inventor
张秀坤
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SHANGHAI RUIKONG VALVE Co Ltd
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SHANGHAI RUIKONG VALVE Co Ltd
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Priority to CN201620072790.9U priority Critical patent/CN205446860U/en
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Abstract

The utility model relates to an ultra -low temperature upper assembling type welded ball valve, including valve body, valve gap and valve rod, the valve gap with the valve body is connected, is provided with disk seat and spheroid in the valve body, and the one end of valve rod is passed the valve gap and is connected with the spheroid, and the other end is connected with actuating mechanism, and valve seat seal face and ball sealing face adoption metal are sealed firmly, and disk seat and valve body laminating department are provided with energy storage sealing washer and disk seat fixer, are provided with belleville spring between disk seat fixer and the disk seat. The utility model discloses but utensil online examination and maintenance make and maintain the simplification, valve seat seal face and ball sealing face adopt the metal sealed firmly, are fit for super low temperature working condition, avoid the dielectric leakage, the cavity of valve body and the cavity of valve gap intercommunication has effectively avoided in the cavity of valve gap the ultra -low temperature medium to arouse the explosion of valve gap and relevant spare part along with the rising gasification back pressure of temperature increases severely, has improved the security, have the fire prevention, prevent static and valve rod to prevent blowing off the function.

Description

Formula welding ball valve is filled on ultralow temperature
Technical field
This utility model relates to a kind of ball valve, particularly relates to fill formula welding ball valve on a kind of ultralow temperature.
Background technology
Ball valve is widely used in the industries such as oil, natural gas, chemical industry, papermaking, pharmacy, iron and steel, is mainly used to make the flow direction cutting off, distribute and changing medium in pipeline.There is following defect in existing ball valve: (1) must use soft sealing material PCTFE, causes significant shrinkage under ultralow-temperature operation conditions to produce uncertain leakage, and wherein ultralow temperature refers to that temperature is below-101 DEG C;(2) when carrying out inspection and maintenance, parts dismounting is wasted time and energy, and causes safeguarding numerous and diverse;(3), in valve cover cavity body after the gasification of ultralow temperature medium, increased pressure causes the blast of valve gap and related components thereof, produces serious consequence.
Utility model content
This utility model overcomes the deficiencies in the prior art, it is provided that fill formula welding ball valve on the ultralow temperature of a kind of simple in construction.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: fill formula welding ball valve on a kind of ultralow temperature, including valve body, valve gap and valve rod, described valve gap is connected with described valve body, valve seat and spheroid it is provided with in described valve body, one end of described valve rod is connected through described valve gap with described spheroid, the other end connects drive mechanism, described sealing surface of seat and ball seal face use metal hard-sealing, described valve seat and described valve body joint place are provided with accumulation of energy sealing ring and valve seat holder, are provided with disk spring between described valve seat holder and described valve seat.
In one preferred embodiment of this utility model, ultralow temperature filling in formula welding ball valve farther includes described valve rod and be provided with passage, described passage connects with the cavity of described valve gap, the cavity of valve body respectively.
In one preferred embodiment of this utility model, ultralow temperature fills formula welding ball valve and farther includes the outer peripheral face of described valve seat holder and be provided with jump ring.
In one preferred embodiment of this utility model, on ultralow temperature, dress formula welding ball valve farther includes described valve body and valve seat joint place is provided with graphite packing.
In one preferred embodiment of this utility model, ultralow temperature fills formula welding ball valve and farther includes to be provided with sealing gasket between described valve gap and valve body.
In one preferred embodiment of this utility model, ultralow temperature fills in formula welding ball valve farther includes described valve gap and be provided with filler, described filler is provided with gland.
In one preferred embodiment of this utility model, ultralow temperature fills formula welding ball valve and farther includes to be fixed with draining board on described valve gap.
This utility model solves defect present in background technology, and this utility model has the advantages that
(1) simple in construction, seal reliable, easy installation and removal, after pipeline pressure release, only need to open valve gap, can On line inspection and maintenance, make maintenance simplify.
(2) sealing surface of seat and ball seal face use metal hard-sealing, change conventional ultra-low temperature ball valve and must use the concept of soft sealing material PCTFE, solve the soft seal valve seat uncertain leakage problem that significant shrinkage produces under ultralow-temperature operation conditions.
(3) cavity of valve body connects with the cavity of valve gap, effectively prevent ultralow temperature medium in the cavity of valve gap along with temperature raise gasification after increased pressure cause the blast of valve gap and related components thereof, improve safety.
(4) there is the anti-blow function of fire prevention, antistatic and valve rod.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of preferred embodiment of the present utility model;
Fig. 2 is the enlarged diagram of A in Fig. 1;
Fig. 3 is the enlarged diagram of B in Fig. 1.
Detailed description of the invention
Being described in further detail this utility model presently in connection with drawings and Examples, these accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is described the most in a schematic way, and therefore it only shows the composition relevant with this utility model.
Such as Fig. 1, shown in Fig. 2, formula welding ball valve is filled on a kind of ultralow temperature, including valve body 2, valve gap 4 and valve rod 6, valve gap 4 is connected with valve body 2, valve seat 8 and spheroid 10 it is provided with in valve body 2, one end of valve rod 6 is connected through valve gap 4 with spheroid 10, the other end connects drive mechanism 12, preferred drive mechanism 12 is gear driven mechanism, valve seat 8 sealing surface and spheroid 10 sealing surface use metal hard-sealing, it is suitable for ultralow-temperature operation conditions, avoid revealing, valve seat 8 and valve body 2 joint place are provided with accumulation of energy sealing ring 14 and valve seat holder 16, disk spring 18 it is provided with between valve seat holder 16 and valve seat 8, there is provided thrust to make between valve seat 8 and spheroid 10 by disk spring 18 to remain and be in sealing contact.
As shown in Figure 3, it is provided with passage 20 in the preferred valve rod of this utility model 6, passage 20 connects with the cavity 22 of valve gap 4, the cavity 24 of valve body 2 respectively, after the ultralow temperature medium in the cavity 22 of valve gap 4 gasifies along with the rising of temperature, increased pressure, by passage 20 by the cavity 24 of the pressure quick drain in the cavity 22 of valve gap 4 to valve body, it is achieved pressure balance, avoid the blast of valve gap 4 and related components thereof, improve security performance.Preferably passage 20 is L-shaped.
In order to avoid valve seat holder 16 is axially moveable, it is ensured that fixing of valve seat 8, the outer peripheral face of this utility model preferred valve seat holder 16 is provided with jump ring 26.
The preferred valve body of this utility model 2 and valve seat 8 joint place are provided with graphite packing 28 so that ball valve has fire-proof function.
It is provided with sealing gasket 30 between the preferred valve gap of this utility model 4 and valve body 2, further increases the sealing between valve gap 4 and valve body 2.
In order to avoid the leakage of medium, it is provided with filler 32 in the preferred valve gap of this utility model, filler 32 is provided with gland 34.
It is fixed with draining board 36, it is to avoid water droplet is fallen on valve body 2, it is ensured that the sealing property of valve body 2 on the preferred valve gap of this utility model 4.Preferably coordinate fixing connection by stud 38, nut 40 between valve gap 4 and valve body 2.
Above according to desirable embodiment of the present utility model for enlightening, by above-mentioned description, related personnel can carry out various change and amendment completely in the range of without departing from this utility model technological thought.The content that the technical scope of this utility model is not limited in description, it is necessary to determine technical scope according to right.

Claims (6)

1. on a ultralow temperature, fill formula welding ball valve, including valve body, valve gap and valve rod, described valve gap is connected with described valve body, valve seat and spheroid it is provided with in described valve body, one end of described valve rod is connected through described valve gap with described spheroid, the other end connects drive mechanism, it is characterized in that: described sealing surface of seat and ball seal face use metal hard-sealing, described valve seat and described valve body joint place are provided with accumulation of energy sealing ring and valve seat holder, it is provided with disk spring between described valve seat holder and described valve seat, it is provided with passage in described valve rod, described passage respectively with the cavity of described valve gap, the cavity connection of valve body.
Formula welding ball valve is filled on ultralow temperature the most according to claim 1, it is characterised in that: the outer peripheral face of described valve seat holder is provided with jump ring.
Formula welding ball valve is filled on ultralow temperature the most according to claim 1, it is characterised in that: described valve body and valve seat joint place are provided with graphite packing.
Formula welding ball valve is filled on ultralow temperature the most according to claim 1, it is characterised in that: it is provided with sealing gasket between described valve gap and valve body.
Formula welding ball valve is filled on ultralow temperature the most according to claim 1, it is characterised in that: it is provided with filler in described valve gap, described filler is provided with gland.
Formula welding ball valve is filled on ultralow temperature the most according to claim 1, it is characterised in that: it is fixed with draining board on described valve gap.
CN201620072790.9U 2016-01-26 2016-01-26 Ultra -low temperature upper assembling type welded ball valve Active CN205446860U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620072790.9U CN205446860U (en) 2016-01-26 2016-01-26 Ultra -low temperature upper assembling type welded ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620072790.9U CN205446860U (en) 2016-01-26 2016-01-26 Ultra -low temperature upper assembling type welded ball valve

Publications (1)

Publication Number Publication Date
CN205446860U true CN205446860U (en) 2016-08-10

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Family Applications (1)

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CN201620072790.9U Active CN205446860U (en) 2016-01-26 2016-01-26 Ultra -low temperature upper assembling type welded ball valve

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CN (1) CN205446860U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109340397A (en) * 2018-12-07 2019-02-15 重庆川仪调节阀有限公司 Upper dress formula ultra-low temperature ball valve
CN112283384A (en) * 2020-10-28 2021-01-29 凯喜姆阀门有限公司 Valve rod blowout prevention ball outlet valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109340397A (en) * 2018-12-07 2019-02-15 重庆川仪调节阀有限公司 Upper dress formula ultra-low temperature ball valve
CN112283384A (en) * 2020-10-28 2021-01-29 凯喜姆阀门有限公司 Valve rod blowout prevention ball outlet valve

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